Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 1.9 on date 25-03-1997 and time 18:17:48 (Italy) in region 4 km NW Santa Croce del Sannio (BN)

A magnitude Md 1.9 earthquake occured in region: 4 km NW Santa Croce del Sannio (BN), on

  • 25-03-1997 17:17:48 (UTC)
  • 25-03-1997 18:17:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4170, 14.7100 at 18 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Santa Croce del Sannio BN 4 927 927
Cercemaggiore CB 5 3777 4704
Cercepiccola CB 6 681 5385
Sassinoro BN 6 618 6003
San Giuliano del Sannio CB 7 1029 7032
Sepino CB 8 1964 8996
Castelpagano BN 8 1483 10479
Morcone BN 9 4932 15411
Circello BN 11 2388 17799
Gildone CB 11 809 18608
Mirabello Sannitico CB 12 2180 20788
Colle Sannita BN 12 2431 23219
Ferrazzano CB 13 3344 26563
Riccia CB 13 5262 31825
Vinchiaturo CB 13 3324 35149
Jelsi CB 14 1781 36930
Guardiaregia CB 14 801 37731
Pontelandolfo BN 14 2167 39898
Campolattaro BN 15 1072 40970
Pietraroja BN 15 545 41515
Campodipietra CB 16 2570 44085
Campobasso CB 16 49431 93516
Reino BN 17 1210 94726
Campochiaro CB 17 646 95372
Casalduni BN 17 1378 96750
Baranello CB 18 2673 99423
Toro CB 18 1391 100814
San Lupo BN 18 801 101615
San Polo Matese CB 19 470 102085
San Marco dei Cavoti BN 19 3371 105456
Fragneto l'Abate BN 19 1049 106505
Cusano Mutri BN 19 4091 110596
Colle d'Anchise CB 19 807 111403
San Giovanni in Galdo CB 19 580 111983
Fragneto Monforte BN 19 1840 113823
Cerreto Sannita BN 20 3940 117763
Castelvetere in Val Fortore BN 20 1240 119003
San Lorenzo Maggiore BN 20 2154 121157
Busso CB 20 1273 122430
Guardia Sanframondi BN 20 5078 127508
Gambatesa CB 20 1464 128972

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Benevento (60091 inhabitants)
49 Km NE of Caserta (76326 inhabitants)
56 Km N of Avellino (54857 inhabitants)
59 Km NE of Acerra (59573 inhabitants)
63 Km W of San Severo (53905 inhabitants)
64 Km NE of Afragola (65057 inhabitants)
65 Km NE of Aversa (53047 inhabitants)
67 Km NE of Casoria (77642 inhabitants)
69 Km NE of Giugliano in Campania (122974 inhabitants)
70 Km W of Foggia (151991 inhabitants)
72 Km NE of Marano di Napoli (59874 inhabitants)
72 Km NE of Portici (55274 inhabitants)
74 Km NE of Ercolano (53709 inhabitants)
75 Km NE of Napoli (974074 inhabitants)
76 Km NE of Torre del Greco (86275 inhabitants)
76 Km N of Scafati (50787 inhabitants)
80 Km N of Cava de' Tirreni (53659 inhabitants)
82 Km NE of Pozzuoli (81661 inhabitants)
82 Km N of Salerno (135261 inhabitants)
83 Km N of Castellammare di Stabia (66466 inhabitants)
93 Km N of Battipaglia (50786 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		Md 1.9 1997-03-25
17:17:48		 41.417 14.71 18 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 263949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-03-25 17:17:48 ± 0.665
Latitude 41.4170 ± 0.0254
Longitude 14.7100 ± 0.0391
Depth (km) 18 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 263949

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4312.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 274
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00016
Epicentral distance of station farthest from the epicenter (degree) 0.00332
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 263949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:09:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PSB1.Z. 1997-03-25T17:17:58.10 10.0 undecidable manual SG 158 0.2109 0.42 0.5
--.VTB1.Z. 1997-03-25T17:17:58.21 10.0 undecidable manual SG 194 0.2331 -0.31 0.8
--.RMI2.Z. 1997-03-25T17:17:57.40 10.0 undecidable manual PG 244 0.3663 0.57 0.9
--.SMB1.Z. 1997-03-25T17:17:54.55 10.0 undecidable manual SG 164 0.0222 0.45 0.7
--.VTB1.Z. 1997-03-25T17:17:53.23 10.0 undecidable manual PG 194 0.2331 -0.95 0.6
--.PSB1.Z. 1997-03-25T17:17:53.89 10.0 undecidable manual PG 158 0.2109 0.25 1.7
--.SMB1.Z. 1997-03-25T17:17:51.22 10.0 undecidable manual PG 164 0.0222 -0.41 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download